Shimano ALFINE S7051 Series Dealer's Manual page 33

INSTALLATION
Installation of the hub to the frame
Place non-turn washers and onto the right and left sides of the hub axle.
At this time, turn the motor unit so that the protrusion of the non-turn washers fit into the
grooves of the rear dropout and align the washers to be almost parallel to the chainstay.
(A)
2
To be continued on next page
(B)
(C)
(D)
(E)
33
(A)
Non-turn washer (for left-side use)
(B)
Motor unit
(C)
Rear dropout groove
(D)
Non-turn washer
(for right-side use)
(E)
Chainstay
TECH TIPS
•
Install the non-turn washer with its
protrusion part aligned with the straight
part of the rear dropout.
Protrusion part
Mark
Straight part
•
Install the non-turn washer so that the
protrusion fits securely in the rear dropout
groove at the front and back sides of the
hub axle.